Under normal circumstances, you should drink 50-80ml of warm water in the morning when you wake up, and usually do not drink too much or too little. If you drink too much water more than 80ml will cause a feeling of fullness in the abdomen, it will cause a loss of appetite when eating in the morning, which will reduce the amount of breakfast eaten, and too little breakfast intake will lead to poor nutritional status and malnutrition throughout the day. If you drink less than 50ml of water in the morning, there will be an obvious lack of water intake, which does not replenish the body’s loss of water overnight, which will cause habitual morning constipation in the long term, so the amount of water drunk in the morning is about 50-80ml is the most scientific. But be sure to drink warm water, do not drink tea, coffee, functional drinks.